baber/WOPTO huggingface dataset:
Patent GB-1044390-A (GB)
Title: Vacuum cleaner
IPC: A47L5/28
Filed: 1963-12-23
Abstract: 1,044,390. Upright vacuum cleaners. SUNBEAM CORPORATION. Dec. 23, 1963 [May 31, 1963], No. 50729/63. Heading A4F. An upright vacuum cleaner comprises a floor engaging suction nozzle 10, a handle 11 (not shown) and an elongated rigid casing 12 interconnecting the two, the upper part of the casing comprising a dust collecting chamber 27a and the lower end of the casing being divided into air impeller and motor chambers 29 and 30 which are vertically superposed when the casing is horizontal. The casing is formed from a front channel-shaped member 23 and a back channel-shaped member which has a panel 20 removable to reveal a dust bag 28. Leads from a cord 19 and a switch 59 (not shown) located within the upper part of the casing are disposed in a channel 64 on the inner face of the front member 23 and are connected to the motor in the lower front of the casing. The cord 19 may be wound on to hooks 21 (not shown) and 22 provided on the panel 20. The suction nozzle 10 is swivellably mounted at the lower end of the casing and a conduit 88 extends rearwardly of the nozzle opening 89 to a conduit 77 formed on the underside of the back of the casing and leading to the air impeller chamber 29 which communicates with the dust bag 28. Air from the dust bag enters the dust chamber and passes through a filter 74 into the motor chamber 30 to cool the motor and is exhausted to the atmosphere through air vents 27. A brush 96 is supported in a carrier 98 on the underside of the suction nozzle and is biased downwardly by spring means for free up and down movement or it can be controlled by a slide 103 which can engage either the upper edge or lower edge of the carrier when the brush is locked in a down or up position respectively. Wheels 13 are provided on the nozzle. The motor comprises a stator 41 having a stack of annular laminations and an armature 40 positioned within the stator on a shaft 36 which extends into the impeller chamber through an opening in the member 32 dividing the lower part of the casing into motor and impeller chambers. The impeller comprises a disc 34 having blades 35 and is mounted on the shaft 36. For cleaning furniture a connector, fitted with a hose, is attached to an opening 81, normally closed by a cover 82, in the back of the casing and cuts the impeller chamber off from the suction nozzle. Floor engaging struts having wheels 18 (not shown) are provided on the connector and support the cleaner in an upright tilted position. The casing may be made of plastics material.
Patent GB-1082086-A (GB)
Title: Arc spot-welding
IPC: B23K9/007
Filed: 1964-12-14
Abstract: 1,082,086. Welding by fusion. NORD AVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Dec. 14, 1964 [Jan. 10, 1964], No. 50920/64. Heading B3R. [Also in Division H2] In inert gas shielded non-consumable electrode arc spot-welding, in which the weld is effected by an arc struck by a high-frequency current and terminated with current decay, a weaker arc is automatically struck by highfrequency current for a timed duration to improve the weld appearance and physical characteristics. The weaker arc is produced by insertion of a resistance in the excitation circuit of the welding generator or in the main welding circuit in accordance with the pre-setting of a switch.
Patent GB-1531277-A (GB)
Title: Composite thermistor component
IPC: H04N9/29
Filed: 1975-12-12
Abstract: 1531277 Thermistors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Dec 1975 [16 Dec 1974] 51000/75 Heading H1K [Also in Division H4] A composite thermistor component comprises two PTC thermistors 2, 7 which are thermally coupled, thermistor 7 (curve b) having a higher resistance than thermistor 2 (curve a) when cold (unoperated), but thermistor 7 having the lower resistance of the two at the final operating temperature; in use, thermistor 2 is heated by thermistor 7 to a higher temperature (and thus higher resistance) than would be produced by the current through thermistor 2 alone. The thermistors are made of barium titanate, the barium being partly replaced by lead in thermistor 7 and by strontium in thermistor 2, which latter has the lower Curie temperature of the two, the final operating temperature being above both Curie temperatures To, T<SP>1</SP> 0 .
Patent GB-1136157-A (GB)
Title: Golf flag pin operating means
IPC: A63B57/00
Filed: 1966-11-15
Abstract: 1,136,157. Golf apparatus. H. K. WHITEHORN. 2 Nov., 1967 [15 Nov., 1966], No. 51055/66. Heading A6D. Golf apparatus comprises a screen 1 of the roller-blind type, with end struts 3 and 4. The screen has a viewing slit 5 at eye level and is mounted in a portable box 2. A rod 6 is mounted on a tripod with adjustable legs 7 at a pivot 9 and has a counterweight 8. The rod carries a flag pin 11 attached by means of a spring-tongued hook 10. The apparatus is used for lifting the flag pin from the hole during putting.
Patent GB-1354154-A (GB)
Title: Fluorinated elastomer blends
IPC: C08L27/12
Filed: 1971-11-04
Abstract: 1354154 Fluoropolymer elastomer compositions MINNESOTA MINING & MFG CO 4 Nov 1971 [5 Nov 1970] 51418/71 Heading C3P A fluorinated elastomer composition comprises at least two curable elastomers of which at least one elastomer is dispersed throughout a second, one phase containing one or more chlorine containing fluorinated elastomers and the other phase containing a chlorine-free elastomer or elastomers. Preferably the composition also contains curing agents for the elastomers and the chlorine-free polymer forms the continuous phase. In examples vinylidene fluoride / perfluoropropene copolymer and vinylidene fluoride / chlorotrifluoroethylene copolymer are used together with silica, magnesium oxide, calcium hydroxide, zinc stearate, hexamethylene diamine carbamate, carbon black, hydroquinone, cinnamylidenetrimethylenediamine, a compound of the formula and optionally diisobutyl ketone. A composition containing only vinylidene fluoride/chlorotrifluoroethylene copolymer together with silica, zinc oxide, dibasic lead phosphite, a blocked amine, and diisobutyl ketone is also described. The compositions are prepared either by blending all the ingredients together just sufficiently to disperse one polymer adequately throughout the other, or by first forming separate premixes for each polymer containing the appropriate curing ingredients, and then blending the premixes.
Patent GB-1181886-A (GB)
Title: Machine for Lifting at Least Two Rows of Root Vegetables such as Beetroot, Chicory, or the Like
Inventor: VERHAEGHE HENRI
IPC: A01D25/00
Filed: 1967-11-13
Abstract: 1,181,886. Harvester for beet &c. H. VERHAEGHE. 13 Nov., 1967 [11 July, 1967], No. 51495/67. Heading A1F. A machine for lifting at least two rows of root vegetables comprising pairs of wheels in V-formation 10, rotating resilient flails 11, transverse conveyer 12 that extends the width of the machine, rear apertured vertical screen 13 and detachable elevator (not shown) is characterised in that the pairs of wheels 10 rotate on a horizontal support 41 and are capable of axial adjustment thereon. Sets of adjustable guides 9 forward of and symmetrical with the wheels 10 serve to correct alignment of the apparatus with the rows of root crop. The wheels 10 are mounted on hubs 40 and rotate with respect to the hubs, the hubs being slidably but non-rotatably mounted on the support 41.
Patent GB-1319157-A (GB)
Title: Servo-drive
IPC: G05D3/18
Filed: 1970-10-29
Abstract: 1319157 Control of DC motors LICENTIA PATENT-VERWALTUNGS GmbH 29 Oct 1970 [30 Oct 1969] 51504/70 Heading H2J [Also in Division G1] In an automatically balanced potentiometric system comprising transmitting potentiometer 3 (Fig. 1), receiving potentiometer 1, differential amplifier 4 and servomotor 2, the output of amplifier 4 is compared at 7, 8 with minimal reference voltages - #U and + #U to energize a relay A or B, depending on the polarity of the output of amplifier 4, whereby contacts a or b are closed to feed the appropriate positive or negative output from a pulse generator 5 to the servomotor 2. The duration of the pulses are proportional to the amplitude of the output of amplifier 4. When this output falls within the range Œ #U the relay A or B is do-energized followed by motor 2. In an alternative embodiment (Fig. 2) the pulse generator 5 feeds constant pulses to motor 2 via a summing amplifier 11 which adds the output signal of amplifier 4 to the energizing current for the motor. A plurality of servo potentiometers (including the associated motors) may be selectively connected, one at a time, to the servo drive circuit, by means of mechanical and/or electronic switches operated in dependence upon a control programme.
Patent GB-1372579-A (GB)
Title: Reproducing device for artificial four channel stereo
IPC: H04S5/02
Filed: 1971-11-08
Abstract: 1372579 Four channel stereo systems PIONEER ELECTRONIC CORP 8 Nov 1971 [9 Nov 1970] 51839/71 Heading H4R A device reproduces two channel stereo signals over four loudspeakers 20, 22, 26, 29 by deriving two extra signals from the two stereo signals and feeding them to two loudspeakers 26, 29 arranged at the rear of the listening area. As described the signals for the rear loudspeakers are derived by taking the difference between the left and right channel signals, applied to terminals of the mixing circuit 23, and feeding the resulting signal to two phase shifting circuits 24, 27, which produce phase shifts which differ by approximately 90 degrees over the frequency range in use. The phase shifting circuits each comprise the cascaded connection of three phase shift circuits each of which has a different phase frequency characteristic. A reverberation device or delay circuit can be provided in the feed to the mixer 23.
Patent GB-1069770-A (GB)
Title: Material exchange columns
IPC: B01D3/20
Filed: 1964-12-21
Abstract: 1,069,770. Gas/liquid contact columns. LE COMMISSARIAT A L'ENERGIE ATOMIQUE, LES HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE and LA COMPAGNIE DE CONSTRUCTION MECANIQUE PROCEDES SULZER. Dec. 21, 1964 [Dec. 19, 1963], No. 51905/64. Heading B1R. In a countercurrent gas/liquid contact column comprising a series of spaced superposed contact trays liquid is transferred from one tray to a subjacent tray against a greater pressure than corresponds to the hydrostatic pressure increase in a liquid column existing between the two contact trays. As shown in Fig. 2a the transfer of liquid from plate to plate is effected by pumps 14a, 14b and 14y. In another embodiment the transfer is effected through pressure - equalising chambers equipped with valves so that a chamber is alternately placed in communicating with one contact tray and with a subjacent tray. In a further embodiment the liquid transfer is carried out by ejectors.
Patent GB-1385924-A (GB)
Title: Packaging tubes
IPC: B65D35/22
Filed: 1972-11-10
Abstract: 1385924 Seaming UMP VENESTA Ltd 3 Oct 1973 [10 Nov 1972] 51947/72 Heading B5K [Also in Division B8] A compartmented packaging tube is formed by friction-welding a preformed thermoplastics nozzle A having separate outlets 4 and 5 to a thermoplastics inner tube B such that its bore communicates with one outlet, introducing the inner tube into an outer thermoplastics or metal tube C and securing the open end 12 of the outer tube to the nozzle such that the tubes' interspace communicates with the other outlet. The open end 12 of the tube C has a snap-fastening engagement with the nozzle. Alternatively, the tube C may be welded or screwed on to the nozzle. As shown, the outlets, which may be of the same or different areas, are formed by barrier member 3, Fig. 1 (not shown), extending downwardly in a shouldered annular body 1a and 1b to below an opening in the side of said body. Alternatively, the outlets may be concentrically arranged, the outer being formed by a plurality of angularly spaced openings. Tubes having three or more compartments may be similarly formed. The inner tube is preferably friction welded to the nozzle by the process according to Specification 1,096,571.
Patent GB-1281527-A (GB)
Title: Putty or like mouldable composition
Inventor: WINK WILLIAM GRAHAM
IPC: C09D5/34
Filed: 1968-11-02
Abstract: 1281527 Putty W G WINK 10 Nov 1969 [2 Nov 1968] 52061/68 Heading C3N The non-diluent part of a putty containing a linseed oil diluent comprises at least 50% by weight calcium carbonate, red lead, and not more than 10% by weight of either shellac or gold size. The shellac, which may be liquid or powdered, and the gold size act as a hardener for the putty.
Patent GB-1412475-A (GB)
Title: Cassette storage unit with sliding cover
IPC: G11B23/023
Filed: 1973-11-12
Abstract: 1412475 Boxes for cassettes J E JOYCE 12 Nov 1973 [30 Nov 1972] 52392/73 Heading B8P A moulded plastics container for tape cassettes and cartridges has a sliding lid 14 covering the top and front faces and slidable laterally. The lid has inturned lips engaging grooves 36, 38 in the container, a hand hole 32 and holes 30 by which the container can be secured to a support. The containers can be stacked by the provision of a back member 26 that is engaged in a slot 28 of a similar container. The body may be of an opaque plastic and the lid of a translucent plastic. Internal divisions (24, Fig. 3, not shown) have a concave upper edge.
Patent GB-1283273-A (GB)
Title: Process and apparatus for blood fractionation
Inventor: BLATT WILLIAM FRED
IPC: A61B5/15
Filed: 1970-11-05
Abstract: 1283273 Fractionating blood; filter for blood AMICON CORP 5 Nov 1970 52788/70 Headings BID and B1X [Also in Division Fl] Blood is separated into a cellular fraction and plasma by conducting it under pressure along a flow path in contact with a porous filter membrane having effective pore diameters of from 0.1 to 0.8 micron. The depth of the path relative to the membrane is no more than 20 mils and the pressure applied to the blood is sufficient to maintain a pressure differential between the opposite faces of the membrane of from 1 to 15 p.s.i. and a flow velocity of whole blood over the membrane of from 2 to 50 feet per minute. Two apparatus for carrying out the process are also described. In that of Figs. 3, 4 (not shown) blood from a hypodermic syringe is forced through the membrane under controlled pressure applied by spring (72).
Patent GB-1454260-A (GB)
Title: Expansion joint
IPC: F16L51/02
Filed: 1972-11-15
Abstract: 1454260 Expansion joints; pipe supports SF AIR TREATMENT Ltd 7 Nov 1973 [15 Nov 1972] 52823/72 Headings F2G and F2P A joint allowing for expansion between a wall 7 of a waste gas conditioner 2 and a wall 6 of an electrostatic precipitator 3 comprises a flexible seal 10 preferably of rubberized laminated aluminized asbestos mounted between a plate 8 on the wall 7 and a plate 9 carried by a further plate 5 on the wall 6. Baffle flanges 17, 18 form a labyrinth for gas flow. In further alternative embodiments the seal 10 can be supported internally by a round bar hoop mounted on supports carried by the plate 9, or the seal may simply be mounted between angle brackets on the plates 8, 9. The conditioner 2 is supported on four vertical columns 20, 21, 22, 23 arranged in a rectangle, three of the columns 21, 22, 23 having thereon a plate 29, Fig. 7, supporting a roller bogie 28 with a socket 31 to receive a bearing 32 on the conditioner 2, and the other column 20 being provided with just a fixed socket as 31, so that expansion movements of the conditioner can be accommodated by movements on the columns 21, 22, 23, the column 20 acting as a fixed point from which the movements are made.
Patent GB-1408767-A (GB)
Title: Optical data storage devices
IPC: G02B27/00
Filed: 1972-11-16
Abstract: 1408767 Multi-track hologram SIEMENS AG 16 Nov 1972 [24 Jan 1972] 52876/72 Heading G2J Sequential, holographic multi-channel recording of data on moving storage tape 1 is achieved by using a pulse-modulated beam 4 and reference beam 5, both focused by cylindrical lenses 7, 8 and combined at 9 and then deflecting the combined beam by an acousto-optical or electrooptical deflector 10. A synchronizing pulse for tracking the beam may also be recorded. To read, either all the tracks are illuminated and individual hologram recorders are sequentially interrogated, or the read-out beam is deflected to illuminate the relevant track.
Patent GB-1195075-A (GB)
Title: PSK Synchronising System.
IPC: H04L27/227
Filed: 1967-11-23
Abstract: 1,195,075. Automatic frequency control systems; phase discriminators. INTERNATIONAL STANDARD ELECTRIC CORP. 23 Nov., 1967 [30 Nov., 1966], No. 53334/67. Heading H3A. In a phase-shift telegraphy system wherein the carrier signal is either in phase or in quadrature phase, a local oscillator 6 is synchronized to the carrier frequency by means of two multipliers 5 and 7 to which the input signals are applied and which are supplied with in-phase and quadrature phase signals from the oscillator 6, the outputs of the multipliers being combined in a linear adder unit 9 and fed through a narrow-band filter 10 to control the frequency of oscillator 6. The output of unit 9 also supplies the demodulated output via a wider band filter 11. The phase shift unit 8 preferably alters the phase of the local oscillator in the opposite direction from that in which the carrier phase is shifted by the modulation.
Patent GB-1279326-A (GB)
Title: Production of sulphonium salts of inorganic acids
IPC: C08K5/36
Filed: 1969-10-31
Abstract: 1279326 Sulphonium salts BADISCHE ANILIN- & SODA-FABRIK AG 31 Oct 1969 [2 Nov 1968] 53471/69 Addition to 1199297 Heading C2C Sulphonium salts of inorganic acids are prepared by reacting a thioether with an alkylene oxide and an inorganic acid at a temperature in the range 20‹ to 80‹ C. under atmospheric or superatmospheric pressure. Examples describe the preparation of compounds of the formula where R is octyl, dodecyl, a C 11 -C 14  alkyl mixture, a C 16 -C 20  alkyl mixture, cyclohexyl and phenylethyl. 1279363 Cardenolide ethers KNOLL AG CHEMISCHE FABRIKEN 12 Jan 1971 [2 Feb 1970] 1404/71 Heading C2U Novel compounds of formula (wherein R 1  is CH 3  or CHO; R 2  is H or OH; and R 3  is C 1-4  alkyl) are prepared by reaction of the corresponding 3#-hydroxy steroids with R 3 OCH 2 Hal. The novel compounds are said to be cardioactive and may be made up with carriers into pharmaceutical compositions for oral administration.
Patent GB-1364454-A (GB)
Title: Reciprocating engines
IPC: F02B75/18
Filed: 1970-11-10
Abstract: 1364454 I C engine timing gear PERKINS ENGINES Ltd 2 Nov 1971 [10 Nov 1970] 53522/70 Heading F1B A reciprocating engine comprises a crankcase defining a timing gear cavity 16 between adjacent cylinders of a bank of cylinders, a crank-shaft 42 and cam-shaft (50), Fig.4 (not shown) with timing wheels 40, 60 drivingly connected with each other at least partially within the cavity which has an opening on at least one side of the crank-case closed by a load bearing cover member 66 on which is supported a wheel 86 to drive an auxiliary device, the wheel 86 being drivably connected to the crank-shaft. A second auxiliary device drive wheel 98 may be provided on the same side of the engine and two more wheels 108, 112 on the other side of the engine. Each of the drive wheels 86, 98, 108, 112 may drive two auxiliary devices, one mounted one each side of the cover members 66 and 106, examples of the devices being given in the Specification. Drive to the wheels 86, 98, 108, 112 may be transmitted by gear-wheels, friction drive wheels, worm gears, friction belts and pulleys.
Patent GB-1171142-A (GB)
Title: Flaw Detector
Inventor: WATSON GERALD LESTER
IPC: G01N21/89
Filed: 1966-12-01
Abstract: 1,171,142. Photo-electric inspection of sheet material; determining surface roughness; testing for surface flaws. G.L. WATSON and D. L, STRADLEY. Dec. 1, 1966 [Dec. 10, 1965], No. 53752/66. Headings G1A, G1M and G1S. Sheets of wood are automatically graded after passage through an inspection station containing a television camera whose raster scan is across the direction of movement of the sheets. A sheet of wood is appraised for flaws by counting the times the television camera signal exceeds a selected threshold, indicating a flaw of a particular severity, and the times when a camera signal exceeding the level lasts for at least two non-consecutive scans, indicating a flaw of a particular length. In the embodiment shown in Fig.3 a television camera 10 receives via mirror 58 and polarizer 60 polarized light reflected off the surface of a sheet of wood 14 carried on a moving belt 16 and scans in raster fashion the wood in a direction perpendicular to its direction of movement. The vertical and horizontal synchronization pulses of the raster respectively reset and step on a counter 64 which via pulse generator 24 opens AND gate 62 only during the 15th line of the raster permitting the camera output to pass to a selected one of level detectors A, B or C. The output of a level detector steps a counter 84, particular counts of which set actuators to classify the quality of the wood. If a flaw was detected on the 15th scan a gate 110 receives an input from a level detector and, upon the third line scan of the next raster, operates the AND gate 62 so passing the camera output to the level detector. If the flaw is still present the appropriate counter is stepped on to further downgrade the wood. An array of mechanical sensors spaced across the moving sheet may be used to gauge roughness. Two kinds of mechanical transducer are shown in Figs. 3 and 4, each comprising a serrated wheel 116 upon an arm 114 which swings over to close switch 120 upon scanning a rough patch and operates all level detectors in Fig. 3.
Patent GB-1489075-A (GB)
Title: Electrical connectors
IPC: H01R12/71
Filed: 1974-12-12
Abstract: 1489075 Electrical connector AMP Inc 12 Dec 1974 [9 Jan 1974 9 Sept 1974] 53874/74 Heading H2E [Also in Division B3] A method of making a multi-contact electrical connector 3, 83, comprises stamping or severing a series of strip-like contact blanks 76, (99), Fig. 13 (not shown), from a continuous strip 74, (98) of metal, bonding the blanks to a continuous web of flexible insulating material 77, (97), so that they extend across and are spaced apart longitudinally of the web, and roll forming the blanks to define one or more bent contact portions. In one embodiment, Fig. 3, the sheet metal 74 is fed between stamping dies 15 to form a ladder strip 75 and at a laminating station 16 the strip 77 is overlaid and bonded to the central portion of the strip 75. The strip is then fed to a rolling station 17 which includes four or more pairs of forming rollers, Figs. 4-7 (not shown), used for progressively forming the cross-members 76 of the strip into contacts. Carrier 82 of the ladder strip is removed either before or after passing through the station 17. In an alternative embodiment, Fig. 13, the web (97) is fed from a supply station (94) to a severing station (95) which severs individual contact lengths (99) from the strip (98) and deposits them on the strip. The strip is precoated with adhesive and when it has set, the strip with the contact lengths is passed through a rolling station (96). The contacts may be joined by two parallel webs (93) of plastics, Fig. 12 (not shown), and only one end of each contact need be shaped, Fig. 11. In all cases the contacts can be pre-plated, plated after forming or spot plated to provide the desired contact surface.
Patent GB-1376479-A (GB)
Title: Cobalt-base alloy
IPC: C23C24/10
Filed: 1972-11-22
Abstract: 1376479 Co base alloy; coating steel cylinders HITACHI METALS Ltd 22 Nov 1972 [26 Nov 1971] 54064/72 Headings C7A and C7F A wear - and corrosion-resistant cobalt base alloy comprises:- B 2À5-4% Cr 5-10% Mn 0À2-2% Si 0À2-2% Fe up to 1% and Ni up to 2% the balance being cobalt. The alloy may be used to line the cylinders of moulders for plastics materials, pumps and compressors. In examples the alloy is powdered, the powder inserted in a steel cylinder capped with iron plates, which is heated to 1200 C and then put in a centrifuge where it is rotated to provide a 2mm. thick lining.